Attached ADU Build in Lake Forest Park, WA

Attached ADU Build in Lake Forest Park, WA

Looking for attached ADU build in Lake Forest Park? Xion Build is a licensed, bonded, and insured adus & conversions contractor delivering standout results for Lake Forest Park homeowners — start to finish, under one roof. Attached accessory dwelling units within the home's footprint.

Lake Forest Park's wooded, lakefront-adjacent homes reward careful finish work and remodels that respect mature trees and grade.

We write scope in plain terms: what we'll do, the materials, the sequence, and how any surprises are handled if something is uncovered.

What's included in your attached ADU build

A typical attached ADU build in Lake Forest Park can involve utilities, finishes, the kitchen and bath, permits — and we put the full scope in writing so you know exactly what's covered before work starts.

You get a single point of contact, licensed and insured trades, and clear communication from the first sketch to the final walkthrough.

How much does an attached ADU build cost in Lake Forest Park?

Most attached ADU build projects in Lake Forest Park fall between $174,000 – $522,500, depending on the size of the space, the finishes you choose, and the condition of what's already there.

Because every home is different, we don't quote final numbers sight unseen. After a free in-home consultation you get a detailed, itemized estimate tied to your actual adus & conversions project — so there are no surprises later.

Why Lake Forest Park homeowners choose Xion Build

One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.

Honest guidance on where to invest and where to save, so your budget goes toward what adds real, lasting value.

Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.

Our Lake Forest Park adus & conversions process

Handoff includes a detailed walkthrough and a written warranty — not a crew that vanishes the moment the dust settles.

We pull the permits, schedule every trade in the right order, and protect your home, landscaping, and daily routine throughout the build.

It starts with a free, no-obligation consultation: what you want, the constraints, and a realistic budget range before you commit to anything.

Frequently asked questions

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